For GC6A7, the main exploded drawing shows the pilot gas heater, flue and tank components; a second assembly lists electric heating-element and thermostat hardware. Bolt-on element callouts belong to this revision's reference and should not be mixed with later screw-in types.

Reference guide: The original model-specific drawing numbers are shown below. Linked part numbers lead to a NewRVParts product with the same Atwood manufacturer number. Historical and superseded numbers are deliberately left unlinked; a product link does not establish fitment, availability, or compatibility with all revisions.

GC6A7: Propane pilot and tank assembly

Atwood GC6A7 illustrated pilot burner and water heater component breakdown
Illustration 1 of 2 — match each drawing callout to its manufacturer reference.
Ref. Manufacturer # Qty Service component
1 90960 1 Flue Box Assembly
2 92640 1 Grille Only, New Style Door
3 91602 1 Robertshaw T-stat, 3/8 Npt X 3/8 Npt
4 91601 1 White Rodgers T-stat Use 91602
5 91347 1 Elbow 1/4 Npt X 3/8 Flair
6 92615 1 Main Burner Assy
7 92742 1 Main Burner Orifice Use Dometic Part# 92743
8 92741 1 Elbow, Main Burner Orifice
9 92616 1 Pilot Assembly Use 91603
9 91603 1 Jade Pilot Assy.
10 91858 1 Door Hardware Kit
11 91502 1 Door, White - 6 Gal. Use 91386
11 91386 1 Access Door 6 Gal. Pw
11 91514 1 Door, Col. White - 6 Gal.
12 91928 1 Set Of 4 Corner Brackets
13 91561 1 Plug,Drain 1/2 Use 91857
13 91857 1 Drain Plug, 1/2 In. 2 Pack
14 92698 1 Petcock Drain Valve 1/8 In
18 96010 1 Ring & Gasket
19 91796 1 Pan Drawn
20 91604 1 Pressure Relief Valve, 1/2 Npt 150 Psi
21 91240 1 Styrofoam Tank Cover - Top Use 92220
21 92220 1 Tank Cover- Bottom Use 93100
21 91241 1 Styrofoam Tank Cover - Bottom Use 92221
21 92221 1 Tank Cover-Top Use 93100
21 93100 1 Tank Cover Kit
NS 91285 1 Jade Orifice Fits #91603 Pilot
NS 91410 1 Inner Tank Use 91591
NS 91591 1 Inner Tank
NS 92610 1 Rubber Grommet, Gas Line
NS 92973 1 Inverted Flare Adapter

GC6A7: Original bolt-on electric heater assembly

Atwood GC6A7 supplemental electric heating and thermostat parts illustration
Illustration 2 of 2 — match each drawing callout to its manufacturer reference.
Ref. Manufacturer # Qty Service component
23 91097 1 Element,Heating 110v Use 91580
23 93089 1 Element,Heating Use 91580
23 91580 1 110 VAC Bolt-On Element - 1500w
26 91092 1 110 VAC On/Off Switch 6 Gal
27 91873 1 T-stat & ECO 120 VAC

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